Mysuntown Chair Mats for Carpet, Standard Pile Carpet, PVC Vinyl Chair Mat for Carpeted Floors 36" x 48" with Lip REDUCE FRICTION BETWEEN CHAIR and CARPET- Protecting carpet and floor from frequent scratch protecting your floor and preventing from everyday wear and tear caused by office chair casters, designed for use on all carpet floor surfaces. HEAVY DUTY- Strong and sturdy PVC Vinyl is very pliable. So there's no dents or cracking even under high stresses with office chair. INDOOR AIR FRIENDLY- These chair mats are composed of materials. No Odor, No Toxins, No Cadmium, No Tin and No Lead. Easy to Flat- This Chair Mat will delivery rolled up, but it wont take long to flatten out. The good material quality makes it durable and reliable for long-lasting use. DURABLE & EASY TO CLEAN- which are durable and sturdy yet very pliable to prevent cracking or shattering. Also very easy to clean.